Nokia Music Player HDR-1(tm): This digital music player for storing and playing AAC and MP3 music files on a removable 32 MB memory card, which holds up to one hour of music.The music player also includes a built-in FM radio, handsfree headset with voice dialing and answering functionality, display for music information, USB cable supplied for downloading from a compatible PC. Self-powered from AAA battery, it can be used with or without a Nokia mobile phone.